linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Javier Martinez Canillas <javier@osg.samsung.com>
To: linux-kernel@vger.kernel.org
Cc: Xinming Hu <huxm@marvell.com>,
	Javier Martinez Canillas <javier@osg.samsung.com>,
	Amitkumar Karwar <akarwar@marvell.com>,
	Kalle Valo <kvalo@codeaurora.org>,
	netdev@vger.kernel.org, linux-wireless@vger.kernel.org,
	Nishant Sarmukadam <nishants@marvell.com>
Subject: [PATCH 3/8] mwifiex: propagate mwifiex_add_card() errno code in mwifiex_sdio_probe()
Date: Fri, 27 May 2016 10:18:17 -0400	[thread overview]
Message-ID: <1464358702-19083-4-git-send-email-javier@osg.samsung.com> (raw)
In-Reply-To: <1464358702-19083-1-git-send-email-javier@osg.samsung.com>

There's only a check if mwifiex_add_card() returned a nonzero value, but
the actual error code is neither stored nor propagated to the caller. So
instead of always returning -1 (which is -EPERM and not a suitable errno
code in this case), propagate the value returned by mwifiex_add_card().

Patch also removes the assignment of sdio_disable_func() returned value
since it was overwritten anyways and what matters is to know the error
value returned by the first function that failed.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
---

 drivers/net/wireless/marvell/mwifiex/sdio.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/marvell/mwifiex/sdio.c b/drivers/net/wireless/marvell/mwifiex/sdio.c
index ab64507c84e1..81003fbe5025 100644
--- a/drivers/net/wireless/marvell/mwifiex/sdio.c
+++ b/drivers/net/wireless/marvell/mwifiex/sdio.c
@@ -191,14 +191,14 @@ mwifiex_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id)
 	if (func->dev.of_node)
 		mwifiex_sdio_probe_of(&func->dev, card);
 
-	if (mwifiex_add_card(card, &add_remove_card_sem, &sdio_ops,
-			     MWIFIEX_SDIO)) {
+	ret = mwifiex_add_card(card, &add_remove_card_sem, &sdio_ops,
+			       MWIFIEX_SDIO);
+	if (ret) {
 		pr_err("%s: add card failed\n", __func__);
 		kfree(card);
 		sdio_claim_host(func);
-		ret = sdio_disable_func(func);
+		sdio_disable_func(func);
 		sdio_release_host(func);
-		ret = -1;
 	}
 
 	return ret;
-- 
2.5.5

  parent reply	other threads:[~2016-05-27 14:18 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-27 14:18 [PATCH 0/8] mwifiex: Fix some error handling issues in mwifiex_sdio_probe() function Javier Martinez Canillas
2016-05-27 14:18 ` [PATCH 1/8] mwifiex: only call mwifiex_sdio_probe_of() if dev has an OF node Javier Martinez Canillas
2016-06-01  4:14   ` Julian Calaby
2016-06-16 15:05   ` [1/8] " Kalle Valo
2016-05-27 14:18 ` [PATCH 2/8] mwifiex: propagate sdio_enable_func() errno code in mwifiex_sdio_probe() Javier Martinez Canillas
2016-06-01  4:15   ` Julian Calaby
2016-05-27 14:18 ` Javier Martinez Canillas [this message]
2016-06-01  4:17   ` [PATCH 3/8] mwifiex: propagate mwifiex_add_card() " Julian Calaby
2016-05-27 14:18 ` [PATCH 4/8] mwifiex: consolidate mwifiex_sdio_probe() error paths Javier Martinez Canillas
2016-06-01  4:18   ` Julian Calaby
2016-05-27 14:18 ` [PATCH 5/8] mwifiex: use dev_err() instead of pr_err() in mwifiex_sdio_probe() Javier Martinez Canillas
2016-06-01  4:16   ` Julian Calaby
2016-05-27 14:18 ` [PATCH 6/8] mwifiex: check if mwifiex_sdio_probe_of() fails and return error Javier Martinez Canillas
2016-06-01  4:19   ` Julian Calaby
2016-05-27 14:18 ` [PATCH 7/8] mwifiex: don't print an error if an optional DT property is missing Javier Martinez Canillas
2016-06-01  4:20   ` Julian Calaby
2016-06-01 13:51     ` Javier Martinez Canillas
2016-06-01 23:13       ` Julian Calaby
2016-06-09 13:51         ` Amitkumar Karwar
2016-05-27 14:18 ` [PATCH 8/8] mwifiex: use better message and error code when OF node doesn't match Javier Martinez Canillas
2016-06-01  4:23   ` Julian Calaby
2016-05-30  9:57 ` [PATCH 0/8] mwifiex: Fix some error handling issues in mwifiex_sdio_probe() function Enric Balletbo Serra
2016-06-09 13:43 ` Amitkumar Karwar

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1464358702-19083-4-git-send-email-javier@osg.samsung.com \
    --to=javier@osg.samsung.com \
    --cc=akarwar@marvell.com \
    --cc=huxm@marvell.com \
    --cc=kvalo@codeaurora.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-wireless@vger.kernel.org \
    --cc=netdev@vger.kernel.org \
    --cc=nishants@marvell.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).